How Do I Change Surgery Date on This site?

My surgery was set for Wed. 3/11. Over the weekend I got a cold. My doctor is postponing my surgery for at least 1 week. How do I change the date on my profile here on ObesityHelp.com? I am technically challenged. Thanks.

We greatly appreciate your interest in helping us build our Q&A database. To discourage vandals from posting garbage, however, we require people to register before posting.